Gas Flow Controller


Type 8750 - Flow Rate Controller, flow control system for gases


The flow rate controller, Type 8750, is a system to measure and control gases using the differential pressure principle. The reliable and robust system consists of an ELEMENT continuous control valve, Type 2301, with the compact process controller Type 8693 and two pressure transmitters, Type 8323. These components are supplied within an assembled system including a special body. The Burkert flow rate controller does not need a separate flow meter. The control valve serves as orifice plate. From the pressure difference across the valve and the given density and temperature a nominal flow can be calculated. Therefore the flow characteristics of the valve are given to the process controller. The volume flow can then be adjusted by changing the stroke of the control valve. All components of the control loop build an integrated system. The flow rate controller offers a high repeatability and large measuring range. With the combination of orifice plate and control valve the pressure drop is reduced in comparison to conventional solutions. With the variable orifice of the control valve the measurement range is increased. Low assembly costs and easy commissioning are further advantages of this unique system.

  • Reliable, robust system
  • Reduced interfaces
  • Orifice plate and actuator in one
  • Easy operation
  • Fit for stand-alone operation
 

Type 8702 - Mass Flow Meter for Gases (MFM)


The mass flow meter (MFM) type 8702 is suited for measuring the mass flow of gases over a big flow range. The thermal MEMS sensor is located directly in the gas stream and therefore reaches very fast response times. Type 8702 can optionally be calibrated for two different gases; the user can switch between these two gases. As electrical interfaces both, analog standard signals and fieldbuses are available. Type 8712 is especially designed for use in harsh environments due to the high protection class.

  • Nominal flow ranges from 0.010 lN/min to 80 lN/min
  • High accuracy
  • Very fast response times
  • Protection class IP 65
  • Optional: Fieldbus interface

Type 8711 - Mass Flow Controller for Gases (MFC)


The mass flow controller (MFC) Type 8711 is suited for regulating the mass flow of gases over a big flow range. The thermal MEMS sensor is located directly in the gas stream and therefore reaches very fast response times. A direct-acting proportional valve from Bürkert guarantees a high sensitivity. The integrated PI controller ensures outstanding control characteristics of the MFC. Type 8711 can optionally be calibrated for two different gases; the user can switch between these two gases. As electrical interfaces both, analog standard signals and fieldbuses are available. The mass flow controller type 8711 fits for various applications, like e.g. burner controls, heat treatment, material coatings, bio reactors, fuel cell technology or test benches.

  • Nominal flow ranges from 0.010 lN/min to 80 lN/min
  • High accuracy and repeatability
  • Very fast settling times
  • Optional: Fieldbus interface

Type 8745 - Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases


The MFC / MFM type 8745 is suitable for the mass flow control of high flow rates. Type 8745 can be configured as MFM or MFC. Optional, four different gases can be calibrated. The thermal inline sensor is located directly in the main gas stream and therefore reaches very fast response times. A direct-acting proportional valve as regulating unit guarantees high sensitivity. The integrated PI controller ensures outstanding control characteristics of the MFC / MFM. MFC Type 8745 is available in two versions: with electromagnetic proportional valve and with motor-driven proportional valve.

  • Nominal flow ranges from 20 lN/min up to 2500 lN/min
  • High accuracy and repeatability
  • Communication via standard signals or Industrial Ethernet
  • Electromagnetic and motor-driven valve actuation available
  • Easy device exchange through configuration memory

Other


Type 8750 - Flow Rate Controller, flow control system for gases

Type 8750 - Flow Rate Controller, flow control system for gases


อ่านต่อ

Type 8702 - Mass Flow Meter for Gases (MFM)

Type 8702 - Mass Flow Meter for Gases (MFM)


อ่านต่อ

Type 8711 - Mass Flow Controller for Gases (MFC)

Type 8711 - Mass Flow Controller for Gases (MFC)


อ่านต่อ

Type 8745 - Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases

Type 8745 - Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases


อ่านต่อ